Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
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Textbook Question
Chapter 3, Problem 6Q
Which would be the weakest base?
(a) CH3CO2Na
(b) CF3CO2Na
(c) CHF2CO2Na
(d) CH2FCO2Na
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a) If the pH value of an aqueous solution of trimethylamine [(CH3)3N] is 10.75, what should be the molarity of this solution?
(CH3)3N + H2O ↔ (CH3)3NH+ + OH-, Kb = 6,3 × 10-5
b) What will be the pH of the solution prepared by dissolving 8.35 g of aniline hydrochloride (C6H5NH3+Cl-) in 750 mL of 0.215 M aniline (C6H5NH2)? Is this solution an effective buffer? Explain (Kb = 7,4 × 10-10 for aniline, C: 12.0 g / mol, H: 1.0 g / mol, N: 14.0 g / mol, Cl: 35.4 g / mol) .
a) If the pH value of an aqueous solution of trimethylamine [(CH3) 3N] is 10.75, what should be the molarity of this solution? (CH3) 3N + H2O ↔ (CH3) 3NH + + OH-, Kb = 6.3 × 10-5
b) What will be the pH of the solution prepared by dissolving 8.35 g of aniline hydrochloride (C6H5NH3 + Cl-) in 750 mL of 0.215 M aniline (C6H5NH2)? Is this solution an effective buffer? Explain (Kb = 7.4 × 10-10 for aniline, C: 12.0 g / mol, H: 1.0 g / mol, N: 14.0 g / mol, Cl: 35.4 g / mol) .
Draw the structures of aspirin, caffeine, and acetaminophen. Give the hybridization of each carbon atom and state which is acidic, weakly acidic, and basic. Identify the sites on each compound that make each acidic, weakly acidic, and basic.
Chapter 3 Solutions
Organic Chemistry
Ch. 3 - Prob. 1PPCh. 3 - PRACTICE PROBLEM 3.2
Write equations showing the...Ch. 3 - PRACTICE PROBLEM 3.3 Which of the following are...Ch. 3 - Prob. 4PPCh. 3 - PRACTICE PROBLEM 3.5 Formic acid (HCO2H) has...Ch. 3 - Prob. 6PPCh. 3 - Prob. 7PPCh. 3 - Prob. 8PPCh. 3 - PRACTICE PROBLEM 3.9 Predict the outcome of the...Ch. 3 - Prob. 10PP
Ch. 3 - Prob. 11PPCh. 3 - Prob. 12PPCh. 3 - Prob. 13PPCh. 3 - Prob. 14PPCh. 3 - Prob. 15PPCh. 3 - Prob. 16PPCh. 3 - Prob. 17PPCh. 3 - What is the conjugate base of each of the...Ch. 3 - List the bases you gave as answers to Problem 3.20...Ch. 3 - 3.22 What is the conjugate acid of each of the...Ch. 3 - List the acids you gave as answers to Problem 3.22...Ch. 3 - Designate the Lewis acid and Lewis base in each of...Ch. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Write an equation, using the curved-arrow...Ch. 3 - When methyl alcohol is treated with NaH, the...Ch. 3 - 3.30 What reaction will take place if ethyl...Ch. 3 - 3.31 (a) The of formic acid. What is the? (b)...Ch. 3 - Acid HA has pKa=20; acid HB has pKa=10. (a) Which...Ch. 3 - Prob. 30PCh. 3 - 3.34 (a) Arrange the following compounds in order...Ch. 3 - 3.35 Arrange the following compounds in order of...Ch. 3 - 3.36 Arrange the following in order of increasing...Ch. 3 - Prob. 34PCh. 3 - 3.38 Supply the curved arrows necessary for the...Ch. 3 - Glycine is an amino acid that can be obtained from...Ch. 3 - 3.40 Malonic acid, , is a diprotic acid. The for...Ch. 3 - 3.41 The free-energy change, , for the ionization...Ch. 3 - 3.42 At the enthalpy change, , for the ionization...Ch. 3 - The compound at right has (for obvious reasons)...Ch. 3 - 3.44.
(a) Given the above sequence of...Ch. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - 3.47 As noted in Table 3.1, the of acetone, , is...Ch. 3 - Formamide (HCONH2) has a pKa of approximately 25....Ch. 3 - List all the chemical species likely to be present...Ch. 3 - Prob. 2LGPCh. 3 - Prob. 3LGPCh. 3 - Prob. 4LGPCh. 3 - Prob. 1QCh. 3 - Which of the following is the strongest base? (a)...Ch. 3 - Prob. 3QCh. 3 - Prob. 4QCh. 3 - Prob. 5QCh. 3 - Which would be the weakest base? (a) CH3CO2Na (b)...Ch. 3 - What acid-base reaction (if any) would occur when...Ch. 3 - The pKa of CH3NH3+ equals 10.6; the pKa of...Ch. 3 - 3.9 Supply the missing reagents.
Ch. 3 - 3.10 Supply the missing intermediates and...
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- Q1. The pKa values of Glutamic acid are 2.2, 4.3 and 9.7. H2N но. HO (a) Calculate the pH of a glutamic acid solution in which the a-amine group is 80% deprotonated? (show your calculation!) (b) Draw the ionic forms of glutamic acid that exist at the calculated pH.arrow_forwardCan you draw this with line structure? (a) trimethylamine (b) 1,4-hexanediamine (c) N,N-dibutylamine (d) 2-Methyl-N-propyl-4-octanaminearrow_forwardBecause amines are basic, they can often accept a proton. Draw the protonated structure of n-propylamine.arrow_forward
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